The outside temperature on the dash display is showing a incorrect reading. It was icy outside the other day and the display was showing 9 degrees celsius... I have checked all the connections inside the left wing mirror casing where the temp sensor is as well as on the "arm" of the mirror. The connections seem good, no water or corrosion present... I fitted a new sensor, but the display is still showing the wrong temperature... Any other ideas as what may cause this issue or have I overlooked something?? I had a look through the other threads but can't see any other points to try? Thanks in advance.

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